Scary...
“A new study has found that breast cancer can metastasize more efficiently while people are sleeping, a finding researchers say could 'significantly change' the way cancer is diagnosed and treated.”

Breast cancer ‘tumour awakens’ as patient sleeps: st...

Very scary.

mimi : I have to sleep less.

that's indeed scary! reminds me i read somewhere that people with cancers may have certain smell, so some scientists try to train dogs to detect it

ヽ(*⌒▽⌒*)ﾉ : Dogs are amazing!